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The NCP1117ST33T3G from ON Semiconductor is a low-dropout positive voltage regulator designed for applications requiring up to 1A of output current. This fixed 3.3V regulator features a maximum dropout voltage of 1.2V at 800mA, ensuring efficient operation. It includes essential protection features such as over-current and over-temperature shutdown.
The device is supplied in a SOT-223 surface-mount package, making it suitable for space-constrained designs. The operating temperature range is from 0°C to 125°C. This regulator is ideal for point-of-regulation applications in consumer and industrial equipment.
Key electrical characteristics include a PSRR of 64dB at 120Hz. The NCP1117 series offers multiple fixed output voltages and an adjustable version, with on-chip trimming for ±1.0% accuracy. This specific part, NCP1117ST33T3G, is the 3.3V fixed output version.
Applications include post-regulation for switching power supplies, battery chargers, and consumer electronics. The SOT-223 package (TO-261-4, TO-261AA) requires surface mounting.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.28 | $0.28 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
3.3V fixed.
1A.
1.2V maximum at 800mA.
0°C to 125°C.
SOT-223, TO-261-4, TO-261AA.
Over current and over temperature protection.
64dB at 120Hz.